Activity for Julia

I'm using the guest feature here on wedding wire. My question is I'm allowing my single friends to bring a +1. Is there a way I can add them and a guest to this list, or do they have to call me and let me know who their guest is? Or am I just better...

So I'm starting our wedding website, but I realized I have absolutely no idea what I put on it!!! I've never actually seen anyone use one for their wedding so I have no basis to go off of. Any suggestions? I'm kinda lost!!